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STRUCTURAL ANALYSIS OF SPRAY-DRIED COCONUT SHELL LIQUID SMOKE POWDER [Analisis Struktural Semprot Kering dari Asap Cair Batok Kelapa] Saloko, Satrijo; Darmadji, Purnama; Setiaji, Bambang; Pranoto, Yudi
Jurnal Teknologi Dan Industri Pangan Vol 23, No 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

STRUCTURAL ANALYSIS OF SPRAY-DRIED COCONUT SHELL LIQUID SMOKE POWDER [Analisis Struktural Semprot Kering dari Asap Cair Batok Kelapa] Satrijo Saloko1)*, Purnama Darmadji2), Bambang Setiaji3) and Yudi Pranoto2) 1) Faculty of Food Technology and Agroindustry, Mataram University, Mataram 2) Faculty of Agricultural Technology, Gadjah Mada University, Yogyakarta 3) Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Yogyakarta   Submitted November 07th 2012 / Accepted December 07th 2012 ABSTRACT   The research was aimed at determining spray drying conditions during the production of smoke particulate powder and its consequences on the physical properties of the product. The experiment was carried out using a complete randomized factorial design. Samples were three solution of chitosan (CS)-maltodextrin (MD) based nanoparticles i.e. CS (0.5% w/v) and MD (9.5% w/v) in acetic acid (1.0% v/v) without liquid smoke (F1), only MD (10% w/v) in liquid smoke (F2) and a mixture of CS (1.5% w/v) and MD (8.5% w/v) in liquid smoke (F5). Each sample solution was prepared at 10% solid contents with addition of 1.0% sodium tripolyphosphate. The experimental factors were inlet air temperatures (T) of 130°C (T1) and 150°C (T2) and feed flow rate (L) of 2.4 mL/minute (L1) and 5.1 mL/minute (L2). The parameters evaluated included bulk density, yield, moisture content, water activity, morphology and particle size. Results showed that the average particle sizes decreased when the inlet air temperature increased. The bulk density, moisture content and water activity of powders tended to decrease with the increase of inlet air temperature. In contrast, the powder yield increased with increasing of inlet air temperature. Furthermore, characteristics of the powder particulates were spherical with smooth surfaces for all treatments but when the inlet air temperatures was high the particles has deeper surfacial grooving and shriveled, especially for sample F1.   Keywords: chitosan, coconut shell liquid smoke powder, maltodextrin, nanoparticle, spray drying ABSTRAK   Penelitian ini bertujuan untuk menentukan kondisi pengeringan semprot selama produksi partikel bubuk asap cair termasuk sifat-sifat fisiknya. Percobaan dilakukan dengan menggunakan rancangan acak lengkap faktorial. Sampel terdiri dari tiga larutan berbasis nanopartikel kitosan (CS)-maltodekstrin (MD) yaitu pertama CS (0,5% b/v) dan MD (9,5% b/v) dalam asam asetat (1,0% v/v) tanpa asap cair (F1), kedua hanya MD (10% b/v) dalam asap cair (F2), dan ketiga campuran CS (1,5% b/v) dan MD (8,5% b/v) dalam asap cair (F5). Setiap larutan sampel dengan total padatan 10% ditambahkan natrium tripolifosfat 1,0%. Faktor penelitian adalah suhu udara masuk (T) terdiri dari 2 tingkat (T1 = 130°C dan T2 = 150°C) dan kecepatan aliran umpan (L) terdiri dari 2 tingkat (L1 = 2,4 mL/menit dan L2 = 5,1 mL/menit ). Parameter penelitian meliputi bulk density, rendemen, kadar air, aktivitas air, morfologi dan ukuran partikel. Hasil penelitian menunjukkan bahwa ukuran rata-rata partikel menurun ketika suhu udara masuk meningkat. Bulk density, kadar air dan aktivitas air dari bubuk cenderung menurun dengan meningkatnya temperatur udara masuk. Sebaliknya, hasil bubuk meningkat dengan meningkatnya temperatur udara masuk. Selain itu, karakteristik partikel bubuk berbentuk bulat dengan permukaan halus untuk semua perlakuan, tetapi ketika suhu udara masuk semakin tinggi maka permukaan bubuk lekuk dan keriput terutama untuk sampel F1.   Kata kunci: kitosan, bubuk asap cair tempurung kelapa, maltodekstrin, nanopartikel, pengeringan semprot
Perengkahan Produk Cair Batubara dengan Katalis Ni/Zeolit Suyati, Linda; Setiaji, Bambang; Triyono, Triyono
Jurnal Kimia Sains dan Aplikasi Vol 10, No 1 (2007): Volume 10 Issue 1 Year 2007
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

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Abstract

Penelitian pirolisis tir batubara dilakukan dengan menggunakan metode alir termokopel dalam reactor. Temperatur reaktor konstan pada temperature 450oC-700oC untuk reaksi termal. Dan untuk reaksi katalitik dilakukan pada temperature 350oC-600oC. Berat katalis dan laju alir H2 adalah konstan. Hasil menunjukkan bahwa pada temperature tinggi reaksi termal pirolisis adalah gas, sedangkan dengan menggunakan katalis adalah kokas. Konversi dengan katalis Ni/Zeolit dibawah temperature 550oC lebih besar dibandingkan secara termal. Hasil cairan terbanyak pada temperatur 600oC hasil utama senyawa phenol pada reaksi katalitik.
OPTIMASI KONDISI FERMENTASI UNTUK PRODUKSI SELULOSA BAKTERI OLEH STRAIN SLK-1 DALAM MEDIA DASAR AIR KELAPA (Optimization Of Fermentation Conditions For The Production Of Bacterial Cellulose By Slk-1 Strain In Coconut Water Based Medium) Sarkono, Sarkono; Moeljopawiro, Sukarti; Setiaji, Bambang; Sembiring, Langkah
Prosiding Seminar Biologi Vol 9, No 1 (2012): Seminar Nasional IX Pendidikan Biologi
Publisher : Prodi Pendidikan Biologi FKIP UNS

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Abstract

ABSTRAK   Tujuan penelitian ini adalah mengoptimasi kondisi fermentasi terbaik strain Bakteri Asam Asetat penghasil selulosa yaitu isolat SLK-1.  Strain ini diisolasi dari buah salak pada penelitian sebelumnya.  Hasil optimasi menunjukkan bahwa kondisi fermentasi optimum untuk pertumbuhan dan produksi selulosa pada isolat SLK-1  dicapai dengan sumber karbon gula pasir, sumber nitrogen ammonium sulfat, pH 7, suhu inkubasi 25°C dan metode fermentasi statis. Karakter struktur permukaan selulosa hasil fermentasi isolat SLK-1 dipengaruhi oleh metode fermentasi yang digunakan.  Metode fermentasi goyangan berpengaruh menurunkan produksi selulosa pada  isolat SLK-1 dan merubah struktur permukaan yaitu susunan mikrofibril lebih renggang dan membentuk gelembung.   Kata Kunci: bakteri asam asetat, optimasi, fermentasi, selulosa bakteri, penggoyangan
OPTIMASI KONDISI FERMENTASI UNTUK PRODUKSI SELULOSA BAKTERI OLEH STRAIN SLK-1 DALAM MEDIA DASAR AIR KELAPA (Optimization Of Fermentation Conditions For The Production Of Bacterial Cellulose By Slk-1 Strain In Coconut Water Based Medium) Sarkono, Sarkono; Moeljopawiro, Sukarti; Setiaji, Bambang; Sembiring, Langkah
Prosiding Seminar Biologi Vol 9, No 1 (2012): Seminar Nasional IX Pendidikan Biologi
Publisher : Prodi Pendidikan Biologi FKIP UNS

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Abstract

ABSTRAK   Tujuan penelitian ini adalah mengoptimasi kondisi fermentasi terbaik strain Bakteri Asam Asetat penghasil selulosa yaitu isolat SLK-1.  Strain ini diisolasi dari buah salak pada penelitian sebelumnya.  Hasil optimasi menunjukkan bahwa kondisi fermentasi optimum untuk pertumbuhan dan produksi selulosa pada isolat SLK-1  dicapai dengan sumber karbon gula pasir, sumber nitrogen ammonium sulfat, pH 7, suhu inkubasi 25°C dan metode fermentasi statis. Karakter struktur permukaan selulosa hasil fermentasi isolat SLK-1 dipengaruhi oleh metode fermentasi yang digunakan.  Metode fermentasi goyangan berpengaruh menurunkan produksi selulosa pada  isolat SLK-1 dan merubah struktur permukaan yaitu susunan mikrofibril lebih renggang dan membentuk gelembung.   Kata Kunci: bakteri asam asetat, optimasi, fermentasi, selulosa bakteri, penggoyangan
The Chemical Composition and Physical Properties of the Light and Heavy Tar Resulted from Coconut Shell Pyrolysis Hasanah, Uswatun; Setiaji, Bambang; Triyono, Triyono; Anwar, Chairil
The Journal of Pure and Applied Chemistry Research Vol 1, No 1 (2012)
Publisher : Chemistry Department, The University of Brawijaya

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Abstract

The tar resulted from pyrolysis of coconut shell is a waste. It is important to be clarified their chemical composition and physical properties in order to find out their feasibility as source of a fuel. This research was resulted two immiscible organic fractions, and these were further determined their physical properties such as water composition by using ASTM D-95 methods, ash composition (ASTM D-482), flash point C.O.C (ASTM D-92), kinematics of viscosity (ASTM D-445), and caloric valued using bomb calorimetric. In addition, tar composition was determined by gas chromatography-mass spectrometry (GCMS). The result provided oil which was categorized as light and heavy bio-oils. The light bio-oil has specific gravity 0.99, ash content 0.01%, kinematics viscosity 25.5 cSt, flash point <27 oC, pH 3 and heating value 10304 kcal/kg. On the other hand, heavy bio- oils gave specific gravity 1.13, ash 0.46%, kinematics viscosity 185 cSt, flash point 134 oC, pH 2.5 and heating value 6210 kcal/kg. Moreover, the light bio-oil contained 79 compounds which was composed of phenol 16.4%, hydrocarbon 12.4%, phenolic 27.6%, other oxygenated compounds 53.6%, and acetic acid 3%, meanwhile the heavy bio-oils contained of 18 compounds which was consisted of phenol 31.2%, lauric acid 6.0%, phenolic 27.6%, and other oxygenated compounds 35.3%, respectively. With this result, it was clarify that these bio-oils could not be used directly as a fuel for motor nor diesel machinery.
PENGANGGURAN SEBAGAI PERHATIAN UTAMA EKONOMI MUHAMMADIYAH Setiaji, Bambang
Tajdida Vol 13, No 1 (2015): Juni
Publisher : Muhammadiyah University Press

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Abstract

Islamic teachings emphasize the reduction of unemployment in religious terminology is called the needy, the people who do not posses income. The indigent are entitled to charity or public funds from the government.Reduction of unemployment caused or inclusive of other economic targets such as the flow of revenue to the public and simultaneously reduce poverty, and reduce social problems. It is a concern of the Quran and is expressed in many verses. Alleviation of poverty in Islam, not based on charity, but based on the work (full employment).The complex problem of unemployment in this country should be a priority in religious movements, particularly Muhammadiyah. Because without getting a job and eventually dignity of ones faith itself would be problematic. It can directly reproduce the movement of employers or improve competence, quality, and skills of learners. 
STRUCTURAL ANALYSIS OF SPRAY-DRIED COCONUT SHELL LIQUID SMOKE POWDER [Analisis Struktural Bubuk Asap Cair Batok Kelapa Hasil Pengeringan Semprot] Saloko, Satrijo; Darmadji, Purnama; Setiaji, Bambang; Pranoto, Yudi
Jurnal Teknologi dan Industri Pangan Vol 23, No 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

The research was aimed at determining spray drying conditions during the production of smoke particulate powder and its consequences on the physical properties of the product. The experiment was carried out using a complete randomized factorial design. Samples were three solution of chitosan (CS)-maltodextrin (MD) based nanoparticles i.e. CS (0.5% w/v) and MD (9.5% w/v) in acetic acid (1.0% v/v) without liquid smoke (F1), only MD (10% w/v) in liquid smoke (F2) and a mixture of CS (1.5% w/v) and MD (8.5% w/v) in liquid smoke (F5). Each sample solution was prepared at 10% solid contents with addition of 1.0% sodium tripolyphosphate. The experimental factors were inlet air temperatures (T) of 130°C (T1) and 150°C (T2) and feed flow rate (L) of 2.4 mL/minute (L1) and 5.1 mL/minute (L2). The parameters evaluated included bulk density, yield, moisture content, water activity, morphology and particle size. Results showed that the average particle sizes decreased when the inlet air temperature increased. The bulk density, moisture content and water activity of powders tended to decrease with the increase of inlet air temperature. In contrast, the powder yield increased with increasing of inlet air temperature. Furthermore, characteristics of the powder particulates were spherical with smooth surfaces for all treatments but when the inlet air temperatures was high the particles has deeper surfacial grooving and shriveled, especially for sample F1.
PEMISAHAN KOMPONEN TAR BATUBARA DENGAN KOLOM FRAKSINASI MENGGUNAKAN FASA DIAM ZEOLIT-Mn Setiaji, Bambang; Tahir, Iqmal; Wahidiyah, Dwi Retno Nurotul
Berkala Ilmiah MIPA Vol 16, No 1 (2006)
Publisher : FMIPA UGM

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Abstract

Pemisahan komponen tar batubara telah dilakukan dengan menggunakan kolom fraksinasi menggunakan fasa diam zeolit-Mn. Zeolit –Mn yang digunakan berupa zeolit alam dari daerah Wonosari dengan penyisipan Mn2+ pada permukaan internal zeolit melalui proses pertukaran kation. Zeolit-Mn dibuat dengan variasi kisaran ukuran fisik yakni 20 – 28, 12 – 20, dan 8 – 12 mesh dan masing-masing ditempatkan pada kolom dengan panjang 30 cm. Tar batubara diperoleh dari hasil pirolisis batubara produksi PT Batubara Bukit Asam menggunakan reaktor pirolisis pada temperatur 500-650 oC dengan gas alir N2 pada kecepatan 100 mL/menit. Pengepakan zeolit-Mn pada kolom dilakukan tanpa pelarut. Proses pemisahan komponen tar dilakukan dengan menggunakan variasi pelarut CCl4, aseton dan etanol, sedangkan analisis komponen dilakukan dengan menggunakan kromatografi gas. Hasil penelitian menunjukkan bahwa zeolit-Mn relatif memiliki kemampuan untuk memisahkan komponen tar dan cenderung mengadsorb hidrokarbon fraksi berat. Variasi fasa gerak yang dilakukan menunjukkan bahwa fasa gerak non polar (CCl4) menghasilkan pemisahan yang relatif baik daripada fasa gerak sedikit polar (etanol) atau fasa gerak polar (aseton). Kata kunci: zeolit, tar batubara, pemisahan fraksinasi
Sifat Fisik dan Mekanik Cocofoam dari Serabut Kelapa dengan Kompon Lateks pada Beberapa Variasi Komposisi Campuran Anom, ID.K.; Setiaji, Bambang; Trisunaryanti, Wega; Triyono, Triyono
Agritech Vol 31, No 3 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

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Abstract

A research about cocofoam physical and mechanical properties of coconut fiber with latex compound in several varieties of composition mixture has been conducted. The purpose of the research is to analyze the influence of the cocofoam composition mixture change towards the physical and mechanical properties: specific density, cocofoam thickness after compression, tensile strength and elongation at break. The process of cocofoam making is done by mixing coconut fibers with latex compound, and then the mixture is molded, pressed, and vulcanized. The variety of composition weight from the mixture of coconut fiber with latex compound (w/w) is: 10/25 (CF5-1), 20/55 (CF5-2), 30/85 (CF5-3), 40/115 (CF5-4), and 50/145 (CF5-5) respectively. At constant volume, the cocofoam is molded with the thickness of 5 cm, and then the cocofoam is vulcanized in an oven of 80oC for 8 hours. From the statistical test result, it was discovered that the variety of coconut fiber composition mixture with latex compound in constant volume, has significant influence to the specific density, tensile strength, and elongation at break, while the compressed cocofoam does not show any significant difference to the change of the cocofoam thickness.ABSTRAKTelah dilakukan penelitian tentang sifat fisik dan mekanik cocofoam dari serabut kelapa dengan kompon lateks pada beberapa variasi komposisi campuran. Tujuan dari penelitian ini adalah untuk menganalisis pengaruh perubahan komposisi campuran bahan cocofoam terhadap sifat fisik dan mekanik yaitu: kerapatan massa, perubahan tebal cocofoam setelah kompresi, kekuatan tarik dan perpanjangan putus. Proses pembuatan cocofoam dilakukan dengan cara mencampurkan serabut kelapa dengan kompon lateks, kemudian campuran dicetak, dipres, dan divulkanisasi. Variasi komposisi berat campuran serabut kelapa dengan kompon lateks (b/b) berturut-turut adalah: 10/25 (CF5-1), 20/55 (CF5-2), 30/85 (CF5-3), 40/115 (CF5-4) dan 50/145 (CF5-5). Pada volume tetap masing-masing cocofoam dicetak dengan ketebalan 5 cm, dan selanjutnya cocofoam divulkanisasi dalam oven pada suhu 80oC selama 8 jam. Dari hasil uji statistik dapat diketahaui bahwa variasi komposisi campuran serabut kelapa dengan kompon lateks pada voleme tetap, berpengaruh secara signifikan terhadap kerapatan massa, kekuatan tarik dan perpanjangan putus, sedangkan cocofoam yang dikompresi ternyata tidak menunjukkan adanya perbedaan yang signifikan terhadap perubahan tebal masing-masing cocofoam.
PENGARUH RASIO CAR, NPL, LDR, BOPO, DAN NIM TERHADAP KINERJA BANK UMUM DI INDONESIA Priyanto Agung Raharjo, Dwi; Setiaji, Bambang; Syamsudin, Syamsudin
Jurnal Manajemen Dayasaing Vol 15, No 2 (2014): Jurnal Manajemen Daya Saing
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

This research is performed on order to test the influence of the variable Capital Adequacy Ratio (CAR), Non Performing Loan (NPL), Loan to Deposit Ratio (LDR), BOPO (Operating Expenses / Operating Income), and Net Interest Margin (NIM), to return on Asset (ROA). The sample used in the study were 120 bank in Indonesia in 2010 and 2011. The data analysis technique used is multiple linear regression, t-statistic and F-statistics test with a significance level of 5%. During research period show as variable and data research was normal distributed. Based on test, multicolinearity, heterosscedasticity and autocorrelation classic assumption deviation has no founded, this indicate that the available data has fulfill the condition to use multi linear regression model. This result of research show that variable CAR, NIM, and LDR positive significant influence toward ROA. Variable NPL and BOPO negative significant influence toward ROA. Prediction capability from these seven variable toward ROA is 78,7 % where the balance 21,3% is affected to other factor which was not to be entered to research model.